Font size won't go above 10 in richtextbox

Question

3.00/5 (2 votes)

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I have a button which has this code:

C#

fontsize = richTextBox1.Font.Size;
fontsize++;
richTextBox1.SelectionFont = new Font(richTextBox1.Font.Name, fontsize, richTextBox1.Font.Style, richTextBox1.Font.Unit);

The fontsize is a float by the way:

C#

static float fontsize = 9F; // declared at the start of program

Basically it sets the rich text box selected font 1 size bigger. But it doesn't work with SelectionFont.
It works fine with richTextBox1.Font = new Font .... This will just keep going up 1 every time but with SelectionFont it stops at 10 and won't go higher. And if I use another button to lower the SelectionFont size it won't go below 8 and it skips out 9.

What am I doing wrong with SelectionFont to make it like this? I just want the fontsize to go up and down, much like that of the buttons in MS Word.
Help please =)

Posted 13-Jan-12 5:12am

Joel Whatley-

Updated 13-Jan-12 5:25am

Mehdi Gholam

v3

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3 solutions

Solution 1

It's something you're doing. There's no problem with the different point sizes. I just wired up an RTB and a NumericUpDown control and the following code worked just fine:

Font oldFont = RTB.SelectionFont;
Font newSize = new Font(oldFont.FontFamily.Name, FontSizeUD.Value, oldFont.Style);
RTB.SelectionFont = newSize;

Posted 13-Jan-12 6:26am

Dave Kreskowiak

Solution 3

All the comments are perfect
but,
For Temporary purpose u can use ctrl+ScrollUP OR Down to Min OR Max Font

Posted 13-Jan-12 18:35pm

swapnilKumbhar

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Richard MacCutchan · Accepted Answer · 2012-01-13T06:55:00

Solution 2

You are using the wrong value to create the new font, you should be using the SelectionFont.Size like this:

C#

fontsize = richTextBox1.SelectionFont.Size + 1;

Posted 13-Jan-12 6:55am

Richard MacCutchan

Comments

Sergey Alexandrovich Kryukov 13-Jan-12 17:53pm

This is a catch, my 5.
--SA

manognya kota 14-Jan-12 4:01am

Good one. my 5.